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It's to AT89c2051 as the core,it have a Pyroelectric sensor. It can auto-locking and have 2.4GHz full-color cameras to send images, shell & wheels is made of plastics bottles . video1: http://www.youtube.com/watch?v=vnLa_W2mlX4 video2: http://www.youtube.com/watch?v=TdP9OjOujoQ&feature=related
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/plastics-bottles-robot